Two studies presented at the American College of Cardiology Conference last week showed, raisins and soy can help prevent hypertension. According to one researcher, munching a handful of raisins three times a day can help lower blood pressure in those who have tension slightly above the average (pre-hypertension) after a few weeks.
In the study, researchers conducted random testing involving 46 people with pre-hypertensive conditions. Study participants known to have blood pressure ranged between 120 per 80 military mercury (mm Hg) to 139 per 89 mm Hg or higher than normal blood pressure.
Compared with people who frequently eat snacks such as cakes or biscuits, raisin-eating group significantly decreased in blood pressure or systolic blood pressure of 10.2, or seven percent over the 12-week study period. The researchers do not know exactly why the raisins able to perform effectively in lowering blood pressure. But they think this is probably due to high levels of potassium are fruits raisins.
"Raisins are rich in potassium content, which has been known for its benefits to lower blood pressure," said lead investigator, Harold Bays, medical director of the Louisville Metabolic and Atherosclerosis Research Center.
"Raisins are also a good source of antioxidants that can alter the biochemistry of the blood vessels, which in turn can reduce blood pressure,"he added.
Handful of raisins (60 raisins) contains one gram of fiber and 212 milligrams of potassium. Raisins are often recommended as part of a diet high in fiber and low in fat to reduce blood pressure.
While in another study, where see efficacy of soy, showed that daily intake of food such as tofu, beans, and green tea can help lower blood pressure more than 5100 white men aged 18-30 years African Americans. The study began in 1985. Here, each participant was asked to report their own data about what they eat.
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